Dlesex



m6 Model.)

B. D. ROGERS.

MEANS FOR SECURINGSTEREOTYPERPLATES WHICH ARE CAST SEPARATELY FROM THEIRBEDS.

N8. 381,820. Patented Apr.-24., 188

77140.): J7VM r N. PETIRS. Phnio-L'rlhogmphor. Walkinglnn. D O.

UNITED STATES PATENT OFFICE.

EDMUND DAWSON ROGERS, OF CHURCH END, FIN OHLEY, COUNTY OF MID- DLESEX,ENGLAND, ASSIGNOR TO PAUL WILOOX, OF NEW YORK, N. Y.

MEANS FOR SECURING STEREOTYPE-PLATES WHICH ARE CAST SEPARATELY FROMTHEIR BEDS.

SPECIFICATION forming part of Letters Patent No. 381,820, dated April24, 1888. Application filed September 17, 1887. Serial No. 260,009. (Nomodel.) Patented in England June 4, 1880 No. 2,275.

To all whom it may concern/.-

Be it known that I, EDMUND DAWSON Roe- ERs, a subject of the Queen ofGreat Britain and Ireland, residing at Church End, Finchley, in thecounty of Middlesex, Kingdom of Great Britain and Ireland, have inventedImprovements in the Means of Securing Stereotype-Plates which are CastSeparately from their Beds, (for which I have obtained a patent inGreatBritain, No. 2,275, bearing date June 4, 1880,) of which the followingis a specification.

The object of thisinvention is to make stereotype-plates and their bedsinsucli mannerthat the plates can be placed and secured on the bedsWithout necessitating an inconvenient disturbance of the adjoining pagesor columns.

According to my invention the plates are placed on the beds by anoblique downward.

motion, and are locked up by the ordinary column rules or otherfurniture of suflicient height.

Theannexed drawing shows,in cross section, a stereotype-plate and bedfor same according to my invention.

a is the stereotypeplate, having at each side thereof a flange. Theflange b has one side thereof, b, inclined or beveled. The flange b is aplain straight flange of the kind described in the specification ofanother application for Letters Patent by. me bearing even dateherewith. It is not in all cases necessary to have two flanges, such asdescribed. Sometimes one or both of said flanges may be dispensed with.

e is a longitudinal oblique rib formed on the under side of plate a.

c is the bed. As will be seen, it is formed at its respective sides withrecesses corresponding to the shape of the before-mentioned flanges bb*, and also it is formed with an oblique groove to receive thebefore-mentioned rib c. When one or both of said flanges b b* is or aredispensed with, the bed cwill be made without the corresponding-groove.The rib 0 serves as a guard against either the bed falling from theplate when the forms are being lifted or the plate being pulled from thebed in the process of printing.

What I claim is 1. A stereotype-plate provided with a longitudinaloblique rib on its under side and the straight vertical flange b* on oneedge, with the recess to receive it, in combination with a bed havingits upper part provided with alongitudinal oblique groove to receive thesaid rib, substantially as described.

2. A stereotype-plate, a, with a longitudinal oblique rib, e, on itsunder side, flange b, with beveled or inclined inner side, b, and plainflange b at right angles to the plate a, substantially as described. I

3. A bed for a stereotype-plate, formed at its upper part with alongitudinal oblique groove to receive a longitudinal oblique rib formedon the under side of said plate, and with a recess narrower at its lowerpart than at its upper part and adapted to receive a flange of thestereotypeplate made with a beveled or inclined inner side,substantially as described.

4. A stereotype-plate, a, with longitudinal oblique rib e on its underside, flange b, with beveled or inclined inner side, b, and plain flangeb*, in combination with a bed, 0, formed with longitudinal obliquegroove, and with recesses at its respective sides adapted to receivesaid flanges b and 11*, substantially as herein described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

EDMUND DAWSON ROGERS.

Witnesses:

O. A. PLAYFORI), 31 Manor Road, Walworth, S. E. Toe G. RIDGWAY. Not,Iuh, 19 Change Alley, London, England,

